Why dont we need to know the population standard deviation when performing a test about a population

Question:

Why don’t we need to know the population standard deviation when performing a test about a population proportion?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Elementary Statistics

ISBN: 9781264136407

4th Edition

Authors: William Navidi , Barry Monk

See More Books

Question Posted: Jul 18, 2024 07:09 AM

See More Questions

Why don't we need to know the population standard deviation when performing a test about a population proportion?
I need your help with this: Can you please quote from the attached chapters / resource if possible? Corporations often use different costs of capital for different operating divisions. Using an...
Please help me with this question from the "p-values versus significance level (and Type I and II errors)" lesson. Thank you so much!!! Question 5 1 pts A type II error is when you fail to reject the...
The insurance company Helmet is considering acquiring BeSafe, a life insurance company. According to BeSafes most recent financial statements, its loss ratio stands at 0.9, and its expense ratio...
Bayess rule was applied to the problem of HIV testing in The American Statistician (Aug. 2008). In North America, the probability of a person having HIV is .008. A test for HIV yields either a...
A student walks 8.0 km south-east and then 12 km due west. a. Draw a vector diagram showing the route. Use your diagram to find the total displacement. Remember to give the scale on your diagram and...
Consider a portfolio that offers an expected rate of return of 12% and a standard deviation of 18%. T-bills offer a risk-free 7% rate of return. What is the maximum level of risk aversion for which...
Matts Eat N Run has two categories of direct labor, unskilled, which costs $7.50 per hour, and skilled, which costs $15 per hour. Management has established standards per equivalent friendly meal,...
Freedman Flowers' stock has a 50% chance of producing a 22% return, a 30% chance of producing a 36% return, and a 20% chance of producins a 20% return. What is the firm's expected rate of return?...
In what ways are hypothesis tests for a population mean different from hypothesis tests for a proportion? In what ways are they similar?
Why is it important to report the P-value or the test statistic when presenting the results of a hypothesis test?
Define deductibles, copayments, and coinsurance.
During Year 1, Ashkar Company ordered a machine on January 1 at an invoice price of $28,000. On the date of delivery, January 2, the company paid $9,000 on the machine, with the balance on credit at...
An airplane has to travel a round trip Manila to Singapore and back (1485 mi apart) in a total time of 7 hours and 10 minutes. The plane from manila to Singapore is flying with a headwind of 70 mph...
Flexible Budget. At normal capacity, Boulder Products Corp. manufactures 10,000 trail bikes. At that level, unit variable costs for the Assembly Department are: Direct...
In the circuit shown below, IE = 120 mA, a = 0.99, a2 = 0.98. Assuming that both transistors are in the active state, answer the following questions: 1. Find IC, IB, IE, IC, and Ic. 2. Find the...
Find the open intervals where the function is concave upward or concave downward. Find any inflection points. f(x)=-(x+1)6 Find any critical numbers for f and then use the second derivative test to...
Wadkins Company, a machinery dealer, leased a machine to Romero Corporation on January 1, 2012. The lease is for an 8-year period and requires equal annual payments of $38,514 at the beginning of...
Consider the advantages and disadvantages of extending property rights so that everyone would have the right to prevent people imposing any costs on them whatsoever (or charging them to do so).
Flow Company has provided the following information for the year ended December 3 1 , 2 0 2 2 : RM Company, a manufacturer, has provided the following information pertaining to its recent year of...
In the GCU Accounting Certification Community (ACC) Network go to Documents and select CPA Exam Blueprints. Explore the Content Area Allocation details for the Regulation (REG) section of the Uniform...
Accounts Receivable decreased by $400, inventories increased by $400, accounts payable increased by $200, notes payable decreased by $200. The Net Working Capital changed by $

Why dont we need to know the population standard deviation when performing a test about a population

Question:

Step by Step Answer:

Elementary Statistics

Students also viewed these Business questions